To ‘know’ is to see the spiritual connection above. Adam ‘knew’ the effect of his actions, same as Mordecai ‘knew’ the terrible plot of Haman.

Adam ‘knew’ the effect of his sin when Cain came to the world. He saw the root of the Snake in Cain and could also see all the incarnations of Cain’s soul all the way to Jethro that was Moses’s father in law.

The Zohar tells us that Adam saw the future correction of Cain as Jethro. Genesis 4:1 “קָנִיתִי אִישׁ אֶת-יְהוָה”, “I have gotten (קָנִיתִי) a man with the help of YHVH”. The first three letters of the first word makes the name of Jethro’s clan Kenite, קני , and Cain’s name קין.

Judges 4:11 “ וְחֶבֶר הַקֵּינִי נִפְרָד מִקַּיִן, מִבְּנֵי חֹבָב חֹתֵן מֹשֶׁה”
“Now Heber the Kenite had severed himself from the Kenites (spelled in Hebrew as Cain), even from the children of Hobab (another name for Jethro) the father-in-law of Moses”

Moses was incarnation of Abel. The Holy Ari tells us in the book “Gate of reincarnation” that when Jethro came to meet with Moses, he said “אֲנִי חֹתֶנְךָ יִתְרוֹ ” , “I am your father in law, Jethro”. The initial of the three words are אחי, meaning “my brother”.

During our Tikkun process we come across many people, some briefly and some for a longer time. They are in our life because we need to resolve past issues with them. Your boss, employee, delivery guy, teacher, bus driver, parents and all.